Radiator-cap



UNITED STATES PATENT oFFica.

CLIFFORD B. DOSSETT, OF JANESVILLE, MINNESOTA.

RADIATOR-CA1.

Application filed November 25, 1919, Serial No. 340,479. Renewed July 18, 1921.

which the following is a specification.

This invention relates to radiator caps of automobiles of all kinds, and has for its object the provision of a cap normally held in place by a spring and telescopically engaged with the filling neck whereby the cap may be disengaged from the neck by pulling the cap slightly upwardly to disengage the flange thereof from the neck and then swinging the cap to either side so that it will be disposed in non-obstructing relation to the neck whereby the radiator may be filled with water.

An important object is the pro-vision of a cap of this character which obviates the use of the ordinary screw-threaded connection and which may be very easily removed with little danger of the operator burning his fingers and which is so constructed as to be unlikely to jam.

An additional object is the provision of a cap'of this character which will be simple and inexpensive in manufacture,-eflicient in use, durable in service, and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of construction to be hereinafter more fully described and claimed and illustrated in the accompanying drawings in which-- Figure l-i's a front elevation showing my cap in position upon the radiator filling neck, 1

Fig. 2 is an elevation at right angles to Fig. 1.

Fig. 3 is a longitudinal sectional view showing the cap moved upwardly, and

Fig. 4 is a plan view showing the cap swung to open position.

Referring more particularly to the drawings, the letter A designates a portion of a radiator which rises from the filling neck- B.

In carrying out my invention I provide a cap 10 of ordinary construction having a Specification of Letters Patent.

Patented Oct. 18, 1921.

Serial NO. 485,789.

depending flange 11 telescopically engaging with n the neck B and if desired, a suitable packing gasketlEZ may be provided between the cap and the top edge of the neck, the casing belng carried by the cap. Secured upon one side of the neck is a short length of tube 13 within which is revolubly engaged the round shank 14c of a leaf spring 15 which extends along the side of the neck and which has ts upper end bent, as shown at 16, to provide a portion 17 extending above the cap and the free end of this portion 17 is secured centrally upon the cap, as shown at 18. The lower end of the shank 14 is threaded and engaged upon this threaded end is an adjusting nut 19 engaging against the lower end of the tube 13, the function of this nut being to regulate-the tension of the spring. Also engaged upon the threaded end is a lock nut 20 for the purpose of clamping the adjusting nut in the desired position.

The use of the device is as follows:

When the cap is closed the flange 11 fits snugly within the neck B and leakage will be prevented owing to the resilience of the spring forcing the cap downwardly. When it is desired to open and remove the cap to permit filling the radiator, it is merely necessary that the operator grasp the cap 10 and pull upwardly thereon against the resilience of the spring until the flange ll clears the upper edge of the neck, after which the cap may be swung in either direction to uncover the neck. The reverse operation is followed for placing the cap in closed position.

F rom the foregoing description and a study of the drawings it will be apparent that I have thus provided a simple and eflicient radiator cap which may be quickly and easily opened or closed in a very short time and which will effectually prevent leakage at the neck.

vWhile I have shown and described the preferred embodiment of my invention it is of course to be undertsood that I reserve the right 'to make such changes in the form, construction, and arrangement of parts as will not depart from thespirit of the invention or the scope of the subjoined claim.

Having thus described my invention, I claim;

In'combination with the filling neck of a radiator, a closure cap therefor having a 5 flange telescopically engaging Within the neck, a tubular bearing member secured upon one side of the neck, a leaf spring having one end secured centrally upon the cap and having its other end revolubly and slidably adjustably mounted Within said bearing member, and an adjusting nut threaded upon said shank and engaging against said bearing member, said nut providlng means whereby the tension on said'spring may be varied.

CLIFFORD B. DOSSETT. 

